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This file is a work of an employee of the Executive Office of the President of the United States, taken or made as part of that person's official duties. As a work of the U.S. federal government , it is in the public domain .
Critical Nuclear Weapon Design Information (CNWDI, often pronounced SIN-widdy or SIN-wuh-dee) is a U.S. Department of Defense (DoD) category of Top Secret Restricted Data or Secret Restricted Data that reveals the theory of operation or design of the components of a thermonuclear or fission bomb, warhead, demolition munition, or test device.
An L clearance is a security clearance used by the United States Department of Energy (DOE) and Nuclear Regulatory Commission for civilian access relating to nuclear materials and information under the Atomic Energy Act of 1954. It is equivalent to a United States Department of Defense (DOD) Secret clearance. [1]
A List X site is a commercial site (i.e. non-government) on UK soil that is approved to hold UK government protectively marked information marked as 'Secret' or above, or international partners information classified ‘Confidential’ or above. [1]
In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.
Access to SCIFs is normally limited to those individuals with appropriate security clearances. [6] Non-cleared personnel in SCIFs must be under the constant oversight of cleared personnel and all classified information and material removed from view to prevent unauthorized access. [7]
A Q Clearance is equivalent to a U.S. Department of Defense Top Secret clearance. [2] According to the Department of Energy, "Q access authorization corresponds to the background investigation and administrative determination similar to what is completed by other agencies for a Top Secret National Security Information access clearance." [2]
S1000D is part of the S-Series of ILS specifications. S1000D is maintained by the S1000D Steering Committee, [ 2 ] which includes board members from AeroSpace and Defence Industries Association of Europe (ASD), the United States' Aerospace Industries Association (AIA), and the Air Transport Association (ATA), along with industry and defence ...